Frequently Asked Questions

Porro Prisms operate on the principle of total internal reflection (TIR). A beam entering perpendicular to the entrance / exit surface is reflected by the two roof surfaces and emerges parallel to itself.

The dimensional tolerance of Porro Prisms is + 0.000", – 0.010".

Porro Prisms are made from BK7, UVFS, and FS materials.

The angular deviation of Porro Prisms is 180º.

The surface quality of Porro Prisms is 10-5.

You May Also Like